diff --git a/Rakefile b/Rakefile
index 2995527..2a4cb71 100644
--- a/Rakefile
+++ b/Rakefile
@@ -1 +1,22 @@
-require "bundler/gem_tasks"
+# encoding: UTF-8
+require 'bundler'
+Bundler::GemHelper.install_tasks
+
+require 'rake'
+
+require 'spec/rake/spectask'
+Spec::Rake::SpecTask.new(:spec) do |spec|
+  spec.libs << 'lib' << 'spec'
+  spec.spec_files = FileList['spec/**/*_spec.rb']
+end
+task :default => :spec
+
+Spec::Rake::SpecTask.new(:rcov) do |spec|
+  spec.libs    << 'lib' << 'spec'
+  spec.pattern = 'spec/**/*_spec.rb'
+  spec.rcov    = true
+end
+
+require 'rdoc/task'
+RDoc::Task.new do |rdoc|
+end